rimailho



E. RIMMLHO.

BEGULATING DEVICE FOR THE FLOW 0F LIQUID IN ORDNANCE BUFFERS.

APPLICATION FILED JULY 21.1917.

Patented Nov. 25, 1919.

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dizirzzegs UNITED STATES-PATENT orFIoE.

EMILE n mn'rtndorrnms, FnANonnssI'enon ro co ment-e nus ronensnr n'cinnrns DE A MARINE" E'l DI-IOMECOURT, or rams, FRANCE.

REGULATING DEVICE ron'rnn FLOW OELIQUID monnimncn-nurrnns. i I

To all whom it may concern:

Be it known that 1,, EMILE RI In o, a;

citizen of the FrenchRepublic, andresiding in Paris,.France, 98 Rue de la Victoire, con-- sulting engineer, have invented certain new and useful Improvements in. and Relating to -Regulating Devices for the Flow. of-

' Liquid in Ordnance-Buifers, of which the following is a completespecification.

In the ordnance-buffers, the flowg-of the liquid, during the recoil of the gun, is regu Specification. of Letters Patent.

lated so as to cause a resistance calculated in view of absorbing the whole momentum with Wh1ch therecolling'mass 1s movlng,

and that, on the available recoil-length For obtaining the best results in an ordnance, it is advantageous to be able toregulate this flow according to the conditions of firing; particularly when the angle of firing decreases, it is of interest to obtain an increased recoil in order to keep a better stability.

The device which is the object of the invention realizes accurately the regulation of the flow of the liquid in an ordnance-bufier according to the angular displacements im-'" H a single rod or like element, which enables the tightness ofthe whole to be easily secured. a

In the accompanying drawings, which illustrate, by way of example, the application of'the device to hydropneumatic buffers: V

Figure1 is a fiow-regulating-device, the regulating elements of which are internal and the drive of which is'external.

Fig. 2 is a section upon the line 11-11 of Fig. 1. i V

Fig. 3 shows diagrammatically the buffer mounted on a gun, in positionof rest, the parts being regulated for a long recoil; Fig. 4 is a view similar to Fig.3 showing the parts toward the end of the recoil.

Fig. 5 shows the parts in the position oc-- cupied for a great training angle, the gun being toward the end of the recoil. r The buffer-body 1 is bored with the orifice lator bodyfti; 4, is the orifice for the flow of thejl quid-tobe regulated; 5 is the orifice thro ugh,-which. the, liquid flows into the regulator,=6 the recoil-valve, of which 7 ,is

Patented Nov. 25, 1919. .Applicationfiled 1111 27, 1317.; Seria1. No.-183,204. r i

, nor in inlet or th late into the regfiiii the, abutment-face, 8 the valve-spring proppedupon the abutment-socket 9, the face 10 ofwhichlimits the lift of the valve, and which is in contact, by'its inclined face 11, with'the regulating wedge 12 rigid with the rod18, the end 1 1 ofwhich passesoutsideithe regulator-body 3 of the buifer body 1. ,A joint 15 insuresthe' tightness around therod13. r 1 I To the end ll is secured a socket 16 provided v itha groove 17 into which slide the inclinedribs 18 of the controlling .rule 19,

one end, providedvwith the roller 20, of

hicl i isa aeed w h thes 1 'se edto the stationary part of the mounting. It will be easily understood that, during the sighting, the roller 20 of therule 19, by ren w,

ing the carefully calculated sinuosities of the .cam 2l, imparts tothe socket 1 6 longi-g tudinal movements which are transmitted;

to the socket 9 by the wedge 12, which. movements havefor effect to increase or decrease the clearance limiting the lift of the valve between the face 7 and the face 10, and to thus automatically regulate the area of the orifice f for obtaining the variations of resistance to the fiow of the liquid as functions of the angles of firing.

Fig. 3, the roller 20'being at the right hand end of the cam 21, and the wedge 12 has only itsextremity engaged under the socket 9, thus permitting the valve 6 to eifect its 7 greatest lift shown in Fig. 4 and allowing the gun make its longest recoil. For longer" angles of elevatiomthe roller 20 comes to the opposite end of the cam 21, thus pushing the brake. I

What I claim is 1. A regulating device air the flow Unique in'or'dnance buffers comprising,a valvecontrolled opening, amovable abuttingmember for the valve, means for operating the abutting member -'to vary the distance between the same and the valve whereby the size of the opening controlled by the valve may be varied, and means operable by the vertical'movement ofthe ordnance for actuating said means which operates the abutting member whereby the displacement of the valve in the opening may be varied in a predetermined ratio to the vertical movement of the Ordnance. 7

2. In a regulating device for the flow of liquid in ordnance butters, a buffer, a liquid chambercommunicating with the buffer, a valve for controllingthe communication between the bufler and liquid chamber, a movable member a spring between the mov able member and valve, and means controlled by the movement of the ordnance in the vertical plane for operating the movable member wherebythe valve willbe displaced according to the vertical movement of the ordnance. I

3. A regulating device for the flow of liquid in ordnance buffers comprising -a valve-controlled opening, a sliding member adapted to limit the displacement of the valve in the opening, a spring interposed between the'valve and the sliding member,

a wedge for-varying the distance between the sliding member and the valve, and means for actuating the wedge operable by the vertical displacementof the ordnance.

4. Ina regulating device for the flow of liquid in ordnance buffers, a b'u'fier, a liquid chamber communicating with the buffer a valve controlling the communication etween the buffer and liquid chamber, the valve having a recess in its bottom, a sliding socket below the valve and spaced therefrom,

- 5. In a regulating' device for the flow of liquid inordnance butters, a buffer, a liquid chamber communicatingwith the'buifer, a spring pressed valv for controlling the communicatlon between the buifer v and liquid chamber, and means controlled by the movement of. the ordnance in a? vertical plane for varying the tension of the spring of the valve and thereby vary the movement of the valve.

In testimony whereof I my hand at St. Etienne, France, this 20th day of June, 1917.

- EMILE RIMAILHO.

In the presence of two witnesses:

JEAN BUYERsY,

DAVIS B. LEWIS.

have hereunto set 

